Available only for georeferenced project, defines the coordinate system used by the Spatial framework, for both Region of interest and Tiling.

Any well-known SRS definition can be entered, see Spatial reference system.

By default, the reconstruction uses a Local East-North-Up (ENU) system with an origin set on the center of the model.

Some SRS define both the coordinate system and tiling. It is the case for Spatial framework.

For non-georeferenced projects, the reconstruction uses the block local coordinate system.

The reconstruction Spatial reference system is used as reference for region of interest and tiling, whereas output 3D model coordinates of productions depend on another Spatial reference system, which you can select at production level.